QUIZ

You administer IQ tests to 10K individuals, then give them a “performance test” for anything, any task.

2000 of them are dead. Dead people score 0 on IQ and 0 on performance. The rest have the IQ uncorrelated to the performance.

What is the spurious correlation IQ/performance?

SOLUTION

37.5%

EUGENICISTS DESTROYED with FACTS and LOGIC